arm64: dts: imx8mp-evk: add hardware reset for EQOS PHY

As commit 798a1807 ("arm64: dts: imx8mp-evk: Improve the Ethernet PHY
description") described, add hardware reset for EQOS PHY.
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mp-evk.dts

@@ -97,6 +97,9 @@ ethphy0: ethernet-phy@1 {
 			compatible = "ethernet-phy-ieee802.3-c22";
 			reg = <1>;
 			eee-broken-1000t;
+			reset-gpios = <&gpio4 22 GPIO_ACTIVE_LOW>;
+			reset-assert-us = <10000>;
+			reset-deassert-us = <80000>;
 		};
 	};
 };